I tried to use it to build same things (just design not code) and my choice is normal Editor . Editor X very good about responsive design but:
1- Less element than normal Editor (IMPORTANT)
2- Some Apps doesn’t support Editor X (IMPORTANT)
3- Almost 2x price against normal Editor
4- A little lag in UI (I couldn’t design same thing very easy in Editor X it has lag I don’t know why I’m holding an element but it’s shows it in another place It was hard to design) (IMPORTANT)